Hot-Rolled Steel H-Beam Structural H-Section Steel

The Hot-Rolled Steel H-Beam is a widely used structural profile characterized by its optimized cross-section shape — parallel flange surfaces and a proportional web-to-flange thickness ratio. This "H" shape provides excellent load distribution, bending resistance, and torsional stability, making it a preferred choice for modern steel structures.

Geometric Advantages vs. Standard I-Beams:

• Wider and parallel flanges simplify connections with other members.

• More uniform thickness distribution delivers higher strength-to-weight ratio.

• Better stability in both major and minor axes.

Standard Specifications & Grades:

• Standards: JIS G3192, ASTM A6, EN 10034, GB/T 11263

• Material Grades: Q235B, Q355B, S235JR, S355JR, A36, A572 Gr.50

• Size Range (Height): 100 mm × 100 mm up to 900 mm × 300 mm

• Length: Typically 6 m, 9 m, 12 m, or customized up to 18 m

Key Structural Features:

Manufacturing Process:

• Hot-rolled method: Continuous casting billet → reheating → universal mill rolling → air cooling → straightening → cutting → inspection.

• Quality control includes dimensional check, ultrasonic test (optional), and mechanical property verification (tensile, yield, elongation).

Common Applications:

• Steel building frames (workshops, warehouses, high-rises)

• Industrial plant columns and crane beams

• Bridge decks and support girders

• Mezzanine floors and platform structures

• Underground support systems (mining, tunnels)

• Shipbuilding and heavy equipment frames

Surface Treatment Options:

• As-rolled (black) surface with mill scale

• Shot blasting (Sa 2.5) + primer coating (15–25 μm)

• Hot-dip galvanized (for outdoor/corrosive environment)

• Anti-rust oil coating for temporary storage

Welding & Machining Compatibility:

• Excellent weldability with standard procedures (SMAW, GMAW, SAW)

• Can be drilled, cut, or notched without cracking

• Compatible with high-strength bolting (grade 8.8 / 10.9)

Quality Assurance:

• Positive material identification (PMI) available

• Mill test certificate (EN 10204 3.1 or 3.2)

• Dimensional tolerances per ASTM A6 / EN 10034

• Third-party inspection accepted (BV, SGS, TÜV)

Packaging & Delivery:

• Bundled with steel strapping, separated by wood/metal spacers

• Tagged with heat number, grade, size, and length

• Sea-worthy export packaging available for containers or break-bulk vessels